Numbers

All of the number-seeking I’ve been doing on google images led me to a post on numbers at The Big Foto, which is really cool (go look at it!) and got me wondering about favourite numbers.

Coincidentally, mine is 4 and a few of its multiples (especially 16), mostly because I like squares.

On a slightly unrelated topic, I discovered aliquot sums today.  The internet is a wonderful thing.  Almost as wonderful as maths.  :)

So: What is your favourite number? Why?